Active NPI
Omar Al-Shuwaykh, M.D
- Gastroenterology Physician
- Walnut Creek, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Gastroenterology Physician
- License
- A139572
- Practice address
- 1425 S Main St
Walnut Creek, CA 94596-5318 - Phone
- (925) 295-5758
- NPI assigned
- Aug 28, 2013
- Last updated
- Aug 13, 2026
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Gastroenterology Physician | 207RG0100X | A139572 | CA | Primary |
Addresses
Primary practice location
1425 S Main St
Walnut Creek, CA 94596-5318
Mailing address
1425 S Main St
Walnut Creek, CA 94596-5318
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| SOAP URL | https://careepicwest.kp.org:14430/Interconnect-prodcalgateway/wcf/epic.community.hite/xcpdrespondinggatewaysync.svc/ncalceq | Health Information Exchange (HIE) |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Hospitalist
- Education
- Other, 2010
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
365 Lennon LN
Suite 230
Walnut Creek, CA 94598-5912
Phone (925) 943-4900
Hospital & facility affiliations
Merit-based Incentive Payment System (MIPS)
- Final score
- 90.32 of 100
- Quality
- 89.54
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 74.34
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Colonoscopy | 46 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 26 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A139572 | CA | MD | Gastroenterology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Bass Medical Group | Current | Accepting new patients | |
| John Muir Trauma Physicians Billing Service | Hospitalist | Current | Accepting new patients |
| Bass Medical Group | Current | Accepting new patients | |
| Hospitalist Medicine Physicians of California, Inc | Internal Medicine | Current | Accepting new patients |
| Bass Medical Group | Current | Accepting new patients | |
| John Muir Trauma Physicians Billing Service | Current | Accepting new patients | |
| Bass Medical Group | Past | Accepting new patients |
Locations
1505 Saint Alphonsus Way
Alamo, CA 94507
Phone (925) 837-4225
18300 US Highway 18
Apple Valley, CA 92307
Phone (760) 424-2311
2510 Webster St
Berkeley, CA 94705
Phone (510) 548-6555
1200 B Gale Wilson Blvd
Fairfield, CA 94533
Phone (707) 429-3600
1255 Travis Blvd
Fairfield, CA 94533
Phone (707) 425-0623
1220 Rossmoor Pkwy
Walnut Creek, CA 94595
Phone (925) 947-3393
1601 Ygnacio Valley Rd
Walnut Creek, CA 94598
Phone (925) 295-1545
365 Lennon Ln
Ste 230
Walnut Creek, CA 94598
Phone (925) 943-4900
Interoperability endpoints
- https://fhir4.healow.com/fhir/r4/IBDGCA
- oalshuwaykh121398@ehr.johnmuirhealth.com
- oalshuwaykh364294@hisp.ehr.sutterhealth.org
Organizations & group practices 8
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
- Obstetrics & Gynecology Physician
- Walnut Creek, CA
- NPI 1174253405
-
- Internal Medicine Physician
- Apple Valley, CA
- NPI 1184663965
-
- Hospitalist Physician
- Walnut Creek, CA
- NPI 1093864837
-
- General Practice Physician
- Walnut Creek, CA
- NPI 1841407665
-
- Orthopaedic Surgery Physician
- Walnut Creek, CA
- NPI 1043616600
-
- Orthopaedic Surgery Physician
- San Ramon, CA
- NPI 1467329904
-
- Trauma Surgery Physician
- Walnut Creek, CA
- NPI 1962551861
-
- Specialist
- Walnut Creek, CA
- NPI 1154401941
Hospital & facility affiliations 2
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba John Muir Health, Walnut Creek Medical Center
- General Acute Care Hospital
- Walnut Creek, CA
- NPI 1740215219
-
dba Alta Bates Summit Medical Center - Alta Bates Campus
- General Acute Care Hospital
- Berkeley, CA
- NPI 1639523004
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1377648000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1786579200000",
"number": "1275967143",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1425 S MAIN ST",
"city": "WALNUT CREEK",
"state": "CA",
"postal_code": "945965318"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1425 S MAIN ST",
"city": "WALNUT CREEK",
"state": "CA",
"postal_code": "945965318",
"telephone_number": "925-295-5758"
}
],
"practiceLocations": [],
"basic": {
"last_name": "AL-SHUWAYKH",
"first_name": "OMAR",
"credential": "M.D",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2013-08-28",
"last_updated": "2026-08-13",
"certification_date": "2026-08-13",
"status": "A"
},
"taxonomies": [
{
"code": "207RG0100X",
"taxonomy_group": "",
"desc": "Internal Medicine, Gastroenterology",
"state": "CA",
"license": "A139572",
"primary": true
}
],
"identifiers": [],
"endpoints": [
{
"endpointType": "SOAP",
"endpointTypeDescription": "SOAP URL",
"endpoint": "https://careepicwest.kp.org:14430/Interconnect-prodcalgateway/wcf/epic.community.hite/xcpdrespondinggatewaysync.svc/ncalceq",
"affiliation": "N",
"endpointDescription": "Carequality",
"use": "HIE",
"useDescription": "Health Information Exchange (HIE)",
"contentType": "OTHER",
"contentTypeDescription": "Other",
"contentOtherDescription": "C-CDA",
"address_1": "1425 S Main St",
"city": "Walnut Creek",
"state": "CA",
"country_code": "US",
"postal_code": "945965318",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Walnut Creek, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.